Researchers use π-Electron reorganization to achieve the highest-efficiency narrowband red fluorescence OLED emitters

Researchers use π-Electron reorganization to achieve the highest-efficiency narrowband red fluorescence OLED emitters

Researchers from Sichuan University have used π-electron delocalization of classic PAHs molecules, through skeleton reconstruction, to design red fluorescence narrowband OLED emitters that offer the highest efficiency to date (24.2% EQE). The researchers explain that their material design strategy enables the controllable transition of aromaticity from global delocalization to local localization, restricts long-range π-electron delocalization, s…